GeForce 8800 GTS (G80) 640MB vs GeForce 9800 GTX+

Intro

Compare all of that to the GeForce 9800 GTX+, which uses a 55 nm design. nVidia has set the core speed at 738 MHz. The GDDR3 RAM runs at a frequency of 1100 MHz on this particular card. It features 128 SPUs as well as 64 TAUs and 16 ROPs.

F.E.A.R. 2

Settings:	Maximum Quality
AA:	4x
AF:	8x
Resolution:	1920x1200
Test Machine:	Unknown (Source)

GeForce 9800 GTX+		48 FPS
GeForce 8800 GTS (G80) 640MB		30 FPS
	Difference: 18 FPS (60%)

Fallout 3

Settings:	Very High Quality
AA:	8x
AF:	16x
Resolution:	1920x1200
Test Machine:	Tom's Hardware Test Machine (Source)

GeForce 9800 GTX+		40 FPS
GeForce 8800 GTS (G80) 640MB		14 FPS
	Difference: 26 FPS (186%)

Fallout 3

Settings:	Very High Quality
AA:	4x
AF:	8x
Resolution:	1680x1050
Test Machine:	Tom's Hardware Charts Test Rig (Source)

GeForce 9800 GTX+		67 FPS
GeForce 8800 GTS (G80) 640MB		38 FPS
	Difference: 29 FPS (76%)

Far Cry 2

Settings:	Very High Qualty
AA:	none
AF:	none
Resolution:	1920x1200
Test Machine:	Intel Core i7-920,3 x 2 GB Ram,Windows Vista Ultimate 32 Bit SP1 (Source)

GeForce 9800 GTX+		46 FPS
GeForce 8800 GTS (G80) 640MB		31 FPS
	Difference: 15 FPS (48%)

Left4Dead

Settings:	Very High Quality
AA:	8x
AF:	16x
Resolution:	1920x1200
Test Machine:	Tom's Hardware Test Machine (Source)

GeForce 9800 GTX+		46 FPS
GeForce 8800 GTS (G80) 640MB		32 FPS
	Difference: 14 FPS (44%)

Left4Dead

Settings:	Very High Quality
AA:	4x
AF:	8x
Resolution:	1920x1200
Test Machine:	Tom's Hardware Charts Test Rig (Source)

GeForce 9800 GTX+		57 FPS
GeForce 8800 GTS (G80) 640MB		38 FPS
	Difference: 19 FPS (50%)

Tom Clancy's Endwar

Settings:	High Quality
AA:	4x
AF:	8x
Resolution:	1920x1200
Test Machine:	Tom's Hardware Test Machine (Source)

GeForce 9800 GTX+		19 FPS
GeForce 8800 GTS (G80) 640MB		14 FPS
	Difference: 5 FPS (36%)

Tom Clancy's H.A.W.X

Settings:	High Quality
AA:	4x
AF:	8x
Resolution:	1680x1050
Test Machine:	Tom's Hardware Charts Test Rig (Source)

GeForce 9800 GTX+		41 FPS
GeForce 8800 GTS (G80) 640MB		30 FPS
	Difference: 11 FPS (37%)

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GeForce 9800 GTX+ wins

(Based entirely on the benchmarks listed above)

When combining all game benchmark scores on this page together, the GeForce 9800 GTX+ wins overall, by 166 FPS. Please note that we do not have the results of every benchmark ever done for these cards, so the results may differ wildly in different games.

GeForce 9800 GTX+		431 FPS
GeForce 8800 GTS (G80) 640MB		265 FPS
	Difference: 166 FPS (63%)

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GTS (G80) 640MB		143 Watts
GeForce 9800 GTX+		145 Watts
	Difference: 2 Watts (1%)

Memory Bandwidth

In theory, the GeForce 9800 GTX+ should be a bit faster than the GeForce 8800 GTS (G80) 640MB in general. (explain)

GeForce 9800 GTX+		70400 MB/sec
GeForce 8800 GTS (G80) 640MB		63360 MB/sec
	Difference: 7040 (11%)

Texel Rate

The GeForce 9800 GTX+ should be much (more or less 92%) more effective at AF than the GeForce 8800 GTS (G80) 640MB. (explain)

GeForce 9800 GTX+		47232 Mtexels/sec
GeForce 8800 GTS (G80) 640MB		24624 Mtexels/sec
	Difference: 22608 (92%)

Pixel Rate

The GeForce 9800 GTX+ is just a bit (about 15%) better at anti-aliasing than the GeForce 8800 GTS (G80) 640MB, and should be capable of handling higher resolutions better. (explain)

GeForce 9800 GTX+		11808 Mpixels/sec
GeForce 8800 GTS (G80) 640MB		10260 Mpixels/sec
	Difference: 1548 (15%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the max amount of information (counted in megabytes per second) that can be transported past the external memory interface in one second. It's worked out by multiplying the bus width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.